workhorse: Update module gitlab.com/gitlab-org/labkit to v1.49.1

This MR contains the following updates:

Package	Type	Update	Change
gitlab.com/gitlab-org/labkit	require	minor	v1.45.0 -> v1.49.1

MR created with the help of gitlab-org/frontend/renovate-gitlab-bot

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Release Notes

gitlab-org/labkit (gitlab.com/gitlab-org/labkit)

v1.49.1

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Bug Fixes

• v2/postgres: address review feedback on integration tests (00901e0)
• v2/postgres: use correct edoburu/pgbouncer Docker image tag (50499b0)

v1.49.0

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Features

• v2/postgres: default to QueryExecModeSimpleProtocol for PgBouncer compatibility (3f701cc)

Bug Fixes

• ci: harden v2 release job (3eba88f)
• v2/postgres: use pgxpool.ParseConfig to create pool config (41bb1b4)

v1.48.1

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Bug Fixes

• address Duo review feedback on shell and error guidelines (09caa74)

v1.48.0

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Features

• v2/httpserver: merge full access logger from v2/http into httpserver (83615e9)

v1.47.0

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Features

• v2/postgres: expose pgxpool.Pool for pgx-native operations (da90e2b)

v1.46.0

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Features

• v2/httpserver: Add HTTP server with built-in health probes (584c63a)
• v2/httpserver: Switch to chi as the default router (9ac3dda), closes team-tasks#4283

Bug Fixes

• v2/httpserver: Add Name(), context-aware listener, and error prefixes (a1da0c7)
• v2/httpserver: Decouple tracing middleware from Chi and add Flusher support (4993800)
• v2/httpserver: Fix race condition in router init and use configured logger (4befdbe)
• v2/httpserver: Run readiness checks concurrently and log JSON encoding errors (8650e61)

v1.45.1

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Bug Fixes

• v2/postgres: Add Name(), connection lifetime config, and error prefixes (a6b3cc2)
• v2/postgres: Address review feedback (7b03cba)

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